/*
 * Copyright (c) 2010-2012. Axon Framework
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.axonframework.samples.trader.webui.init;

import org.springframework.context.ApplicationListener;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.stereotype.Component;

/**
 * <p>Special class used to initialize the database when starting the container. The database is only initialized
 * when the collection "UserView" is not yet available.</p>
 * <p>We need to check for the display name of the application context since we by default have two using spring-mvc
 * the way we do.</p>
 *
 * @author Jettro Coenradie
 */
@Component
public class RunDBInitializerWhenNeeded implements ApplicationListener<ContextRefreshedEvent> {
    @Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        DBInit init = event.getApplicationContext().getBean(DBInit.class);

        if ("Root WebApplicationContext".equals(event.getApplicationContext().getDisplayName())) {
            init.createItemsIfNoUsersExist();
        }
    }
}
